Netherwalker is a common Demon Hunter minion card that belongs to the "Ashes of Outland" set, which was released on 07.04.2020 and is one of initially 135 cards. The artist of this card was Arthur Bozonnet, who also made 110 other artworks for Hearthstone.
The flavor text of the card is the following: You got to Nethercrawl before you can Netherwalk.
The card is easy to memorize with 90.91% of correct quiz questions.